کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10432791 | 910259 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-vivo analysis of thoracic mechanical response under belt loading: The role of body mass index in thorax stiffness
ترجمه فارسی عنوان
تجزیه و تحلیل انویزی واکنش مکانیکی قفسه سینه تحت بارگذاری کمربند: نقش شاخص توده بدنی در سفتی قفسه سینه
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
چکیده انگلیسی
Thoracic injuries are a major cause of mortality in frontal collisions, especially for elderly and obese people. Car occupant individual characteristics like BMI are known to influence human vulnerability in crashes. In the present study, thoracic mechanical response of volunteers quantified by optical method was linked to individual characteristics. 13 relaxed volunteers of different anthropometries, genders and age were submitted to non-injurious sled tests (4 g, 8 km/h) with a sled buck representing the environment of a front passenger restrained by a 3-point belt. A resulting shoulder belt force was computed using the external and internal shoulder belt loads and considering shoulder belt geometry. The mid sternal deflection was calculated as the distance variation between markers placed at mid-sternum and the 7th vertebra spinous process of the subject. Force-deflection curves were constructed using resulting shoulder belt force and midsternal deflection. Average maximum chest compression was 7.9±2.3% and no significant difference was observed between overweight subjects (BMIâ¥25 kg/m²) and normal subject (BMI<25 kg/m²). The overweight subjects exhibited significantly greater resultant belt forces than normal subjects (715±132 N vs. 527±111 N, p<0.05), higher effective stiffness (30.9±10.6 N/mm vs. 19.6±8.9 N/mm, p<0.05) and lower dynamic stiffness (42.7±8.71 N/mm vs. 61.7±15.5 N/mm, p<0.05).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 46, Issue 5, 15 March 2013, Pages 883-889
Journal: Journal of Biomechanics - Volume 46, Issue 5, 15 March 2013, Pages 883-889
نویسندگان
David Poulard, François Bermond, Sabine Compigne, Karine Bruyère,